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Which ore contains both iron and copper?...

Which ore contains both iron and copper?

A

Cuprite

B

Chalcocite

C

Chalcopyrite

D

Malachite

Text Solution

Verified by Experts

The correct Answer is:
C
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The ore that contains both iron and copper is:

Two solid spheres of same size, of one iron and other of copper, are suspended by strings and submaerged in a beaker containing a certain liquid (the density of liquid is less than that of both iron and copper). If the density of copper is greater than that of iron, which of the following statements are true? (a) The upthrust on copper sphere is greater than that on the iron sphere. Upthrust is equal on both spheres. (c) Tension in the string supporting copper sphere is greater than that in the string supporting iron sphere. (d) Tension in both the strings is equal.

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